[PATCH v2 2/9] arm64: dts: st: add ltdc support on stm32mp231
From: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Date: 2026-02-10 10:04:04
Also in:
linux-devicetree, lkml
Subsystem:
arm/stm32 architecture, the rest · Maintainers:
Maxime Coquelin, Alexandre Torgue, Linus Torvalds
The LCD-TFT Display Controller (LTDC) handles display composition, scaling and rotation. It provides a parallel digital RGB flow to be used by display interfaces. Add the LTDC node. Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com> --- arch/arm64/boot/dts/st/stm32mp231.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/st/stm32mp231.dtsi b/arch/arm64/boot/dts/st/stm32mp231.dtsi
index 88e214d395ab7af53e2707dbc2dfc6b3d000a798..a6840882f512b132b69b917ccbc6cfd4a502a481 100644
--- a/arch/arm64/boot/dts/st/stm32mp231.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp231.dtsi@@ -1178,6 +1178,18 @@ exti2: interrupt-controller@46230000 { <&intc GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>; /* EXTI_70 */ }; + ltdc: display-controller@48010000 { + compatible = "st,stm32mp251-ltdc"; + reg = <0x48010000 0x400>; + interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&rcc CK_KER_LTDC>, <&rcc CK_BUS_LTDC>; + clock-names = "lcd", "bus"; + resets = <&rcc LTDC_R>; + access-controllers = <&rifsc 80>; + status = "disabled"; + }; + intc: interrupt-controller@4ac10000 { compatible = "arm,gic-400"; reg = <0x4ac10000 0x1000>,
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2.43.0